An ion generator 10a has an ejection head 18 as an opposite electrode and a discharge electrode 16, and generates air ions by corona discharge. A nozzle 14 supporting the discharge electrode 16 is attached to a base member 12 formed with an air supply path 11, and the nozzle 14 is formed with an exp
An ion generator 10a has an ejection head 18 as an opposite electrode and a discharge electrode 16, and generates air ions by corona discharge. A nozzle 14 supporting the discharge electrode 16 is attached to a base member 12 formed with an air supply path 11, and the nozzle 14 is formed with an exposure surface 24 for exposing the tip end portion 16b of the discharge electrode 16 and a tapered surface 25. The nozzle 14 is formed with air guide holes 26 which communicate with the air supply path 11, and ejection ports of the air guide holes 26 are open on the tapered surface 25. Compressed air ejected from the ejection port is flowed along the tapered surface 25 so that outside air surrounding the nozzle 14 is involved in the compressed air, and sprayed in a front direction of the discharge electrode 16.
대표청구항▼
1. An ion generator having a discharge electrode and an opposite electrode provided in the vicinity of the discharge electrode, and generating air ions by applying an alternating high voltage between the electrodes to generate corona discharge, wherein the ion generator has a nozzle supporting the d
1. An ion generator having a discharge electrode and an opposite electrode provided in the vicinity of the discharge electrode, and generating air ions by applying an alternating high voltage between the electrodes to generate corona discharge, wherein the ion generator has a nozzle supporting the discharge electrode, the nozzle being formed with an exposure surface for exposing a tip end portion of the discharge electrode, and a tapered surface extending to an outer peripheral surface from the exposure surface so as to be slanted in a base end portion side direction,the nozzle is formed with an air guide hole communicating with the air supply path, and an ejection port of the air guide hole is formed so as to be open on the tapered surface,outside air surrounding the nozzle is involved in air which flows along the tapered surface from the ejection port and flows in a front direction of the discharge electrode. 2. The ion generator according to claim 1, wherein an auxiliary air guide hole is formed in the nozzle, wherein air is supplied to the periphery of the discharge electrode from the auxiliary air guide hole. 3. The ion generator according to claim 1, which has an ejection head which covers the nozzle, the ejection head being formed with an ejection hole for ejecting air ions and an air introduction hole through which outside air is taken in. 4. The ion generator according to claim 3, wherein the ejection head is made of conductive material, wherein the ejection head is defined as the opposite electrode. 5. The ion generator according to claim 3, wherein an air supply joint member formed with an air introduction port communicating with the air introduction hole is mounted on the ejection head, wherein the outside air is supplied to the periphery of the nozzle from the air introduction port. 6. The ion generator according to claim 1, wherein the tip end portion of the discharge electrode is approximately on the same level with the exposure surface. 7. The ion generator according to claim 1, wherein the tip end portion of the discharge electrode protrudes in comparison with the exposure surface. 8. The ion generator according to claim 2, which has an ejection head which covers the nozzle, the ejection head being formed with an ejection hole for ejecting air ions and an air introduction hole through which outside air is taken in. 9. The ion generator according to claim 2, wherein the tip end portion of the discharge electrode is approximately on the same level with the exposure surface. 10. The ion generator according to claim 2, wherein the tip end portion of the discharge electrode protrudes in comparison with the exposure surface. 11. The ion generator according to claim 3, wherein the tip end portion of the discharge electrode is approximately on the same level with the exposure surface. 12. The ion generator according to claim 3, wherein the tip end portion of the discharge electrode protrudes in comparison with the exposure surface. 13. The ion generator according to claim 4, wherein the tip end portion of the discharge electrode is approximately on the same level with the exposure surface. 14. The ion generator according to claim 4, wherein the tip end portion of the discharge electrode protrudes in comparison with the exposure surface. 15. The ion generator according to claim 5, wherein the tip end portion of the discharge electrode is approximately on the same level with the exposure surface. 16. The ion generator according to claim 5, wherein the tip end portion of the discharge electrode protrudes in comparison with the exposure surface. 17. The ion generator according to claim 8, wherein the tip end portion of the discharge electrode is approximately on the same level with the exposure surface. 18. The ion generator according to claim 8, wherein the tip end portion of the discharge electrode protrudes in comparison with the exposure surface.
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이 특허에 인용된 특허 (9)
Collins Nelson H. (20 San Rafael Pittsford NY 14618), Air ionizing cell.
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